Image erasure

Image erasure. The potential differences due to latent image formation are removed by flooding the photoreceptors with a sufficiently intense light source to drive the surface potential to some uniformly low value (typically I00V corresponding to fields of 10 Vcni ) the photoreceptor is then ready for another print cycle. 

A variety of detectors is used in the field of X-ray scattering. In fact, the proper choice of the detector (as well as the sample thickness) is essential for good quality of the recorded data, whereas the intensity of the synchrotron radiation determines the minimum cycle time between two snapshots - if a modern CCD detector is used. Gas-filled detectors cannot be used to record high-intensity scattering patterns. Image plates need a minimum time of 2 min for read-out and erasure. 

Figure 16. Typical apparatus for erasure of electrostatic image and vacuum-brush cleaning. (Reproduced, with permission, from Ref. 84. Copyright 1980, Society of Photographic Scientists and Engineers.)...

Figure 8.1 Images recorded from a distance at different times demonstrating the persis-of 75 cm from the display at different angles, tence of the hologram, (c) Erasure of the (a) 3D hologram of a sports car and the hoi- image using uniform exposure. Reprinted by ogram of a human brain recorded onto the permission from Macmillan Publishers Ltd same area after erasing the first, (b) Pictures Nature, Ref. [5], Copyright 2008.

Most studies have dealt with case (1) above. This equipment geometry can be used either to suppress an orientational effect [39, 78, 79] or to erase the ultrasonic images on the convertor surface [26, 59]. Nagai and lizuka [26] have shown that under an applied electric pulse the erasure time is reduced by one or two orders of magnitude. Of the results that have reported, the influence of the anchoring energy on the acous-... 

The glass substrates carry transparent conducting layers such as indium tin oxide (ITO) this can act to absorb the laser energy and/or as an electrical conducting layer. For example, total erasure of the image can be achieved in several ways (Fig. 2) ... 

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